mare nostrum
noun
ma·re no·strum
ˈmär-(ˌ)ā-ˈnō-strəm 
: a navigable body of water (such as a sea) that belongs to a single nation or is mutually shared by two or more nations
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“Mare nostrum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mare%20nostrum. Accessed 24 Nov. 2024.
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